To check is btrfs-convert create bad filesystem with leaf across stripes. It is happened in progs version <=v4.1.2, and fixed by patch titled: btrfs: convert: Avoid allocating metadata extent crossing stripe boundary which was merged in v4.2.
Notice thar this testcase can not report error in old version of btrfs-progs, because "btrfs check" can't check this type of error in those version, but we have another testcase in fsck-tests, to check is "btrfs check" support this check. So, use above 2 testcase together can check out leaf-across-stripes bug in all version. Signed-off-by: Zhao Lei <[email protected]> --- tests/misc-tests/008-leaf-across-stripes/test.sh | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100755 tests/misc-tests/008-leaf-across-stripes/test.sh diff --git a/tests/misc-tests/008-leaf-across-stripes/test.sh b/tests/misc-tests/008-leaf-across-stripes/test.sh new file mode 100755 index 0000000..cd426a9 --- /dev/null +++ b/tests/misc-tests/008-leaf-across-stripes/test.sh @@ -0,0 +1,23 @@ +#!/bin/bash +# test btrfs-convert create filesystem without leaf across stripes + +source $TOP/tests/common + +check_prereq btrfs-convert +check_prereq btrfs + +# In my test, it happened in 514M~560M, 737M~769M, 929M~917M, +# and HAVE_ERROR=((size + 1) / 2) % 2 if size >= 970 +# +SIZE_FROM=514 +SIZE_END=560 +A_PRIME_NUM=17 +for ((size = SIZE_FROM; size <= SIZE_END; size += A_PRIME_NUM)); do + run_check truncate -s "$size"M "$IMAGE" + run_check mkfs.ext4 -F "$IMAGE" + run_check $TOP/btrfs-convert "$IMAGE" + $TOP/btrfs check "$IMAGE" 2>&1 | grep "crossing stripe boundary" && + _fail "leaf across stripes in btrfs-convert" +done + +exit 0 -- 1.8.5.1 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
